:Product: 0828RSGA.txt
:Issued: 2012 Aug 28 2200 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 241 Issued at 2200Z on 28 Aug 2012
IA.  Analysis of Solar Active Regions and Activity from  27/2100Z
to 28/2100Z:  Solar activity was very low. Region 1558 (N13E65)
produced the largest flare of the period, a B6/Sf at 28/0307Z.
Region 1559 (N18E63) an Axx-alpha type group was numbered today. No
Earth-directed CMEs were observed.
IB.  Solar Activity Forecast:  Solar activity is expected to be very
low to low with a slight chance for moderate activity for the next
three days (29-31 August).
IIA.  Geophysical Activity Summary 27/2100Z to 28/2100Z:
The geomagnetic field was quiet. The greater than 2 MeV electron flux
at geosynchronous orbit reached high levels during the period.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be predominately quiet for days 1-3 (29-31 August).
III.  Event Probabilities 29 Aug-31 Aug
Class M    10/10/10
Class X    01/01/01
Proton     01/01/01
PCAF       Green
IV.  Penticton 10.7 cm Flux
Observed           28 Aug 111
Predicted   29 Aug-31 Aug  110/115/115
90 Day Mean        28 Aug 124
V.  Geomagnetic A Indices
Observed Afr/Ap 27 Aug  007/007
Estimated Afr/Ap 28 Aug  003/004
Predicted Afr/Ap 29 Aug-31 Aug  006/005-006/005-006/005
VI.  Geomagnetic Activity Probabilities 29 Aug-31 Aug
A.  Middle Latitudes
Active                05/05/05
Minor storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor storm           15/15/15
Major-severe storm    05/05/05